On the other hand, in 2010, ice-out occurred April 5, and temperatures by the end of April were 50 degrees. My point is that the fish behavior around opening day depends not just on ice-out dates, but also on weather after ice-out.
You have to make decisions about the type of manufactured home foundation you want installed. A Low Profile type is popular now, but may be much more expensive. Generally, an alternative FHA approved pier foundation costs less. The Contractor will give you a bid on all the costs involved for either type foundation.
The dealer nearby has a wide selection of manufactured homes. Single wides, double wides, ranches, capes, and even a log sided cape with a 8/12 roof pitch. But they all have the metal frame as part of the construction. Where I live, modulars are the most common form of construction due to the short building season.